A geometry-based stochastic scattering model (GBSSM) combining of multi-rings and multi-ellipses model for wideband multi-input multi-output (MIMO) vehicle-to-vehicle (V2V) fading channels is developed in this paper w...
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ISBN:
(纸本)9781509053773
A geometry-based stochastic scattering model (GBSSM) combining of multi-rings and multi-ellipses model for wideband multi-input multi-output (MIMO) vehicle-to-vehicle (V2V) fading channels is developed in this paper with cross polarized antennas. The proposed model can be applied for the line-of-sight (LOS) and non-LOS (NLOS) scenarios. The channel implementation described in this paper is more concise compared with the available analytical solutions. Based on the proposed GBSSM and realized channel, the channel characteristics and parameters at 2 and 5 GHz with 100 MHz bandwidth are investigated in further.
The solar radiation focusing effect is related to the specific phenomenon of propagation of the Sun-emitted HF and VHF waves through terrestrial ionosphere. This natural effect is observed with ground-based radio inst...
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The Space Weather effects in the near-Earth environment as well as in atmospheres of other terrestrial planets arise by corpuscular radiation from the Sun, known as the solar wind. The solar magnetic fields govern the...
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Binocular stereo vision uses two cameras of the same specification instead of human eyes for measurement and judgment. The basic principle of binocular vision ranging is to simultaneously capture the image of the meas...
Binocular stereo vision uses two cameras of the same specification instead of human eyes for measurement and judgment. The basic principle of binocular vision ranging is to simultaneously capture the image of the measured object by using two left and right cameras. The objectmeasuredisdifferent, andthe positions under the different camera screensaredifferent, this difference in position is called disparity. The three-dimensional information of the object is obtained according to the principle of disparity. The binocular stereo vision ranging system, which combines the advantages of high efficiency and high precision, is ideal for non-contact detection and quality control. This paper proposes a method combining MATLAB calibration and OpenCV matching to achieve binocular stereo vision. Using the MATLAB calibration tool to perform stereo calibration of the camera, combined with OpenCV for stereo rectification and stereo matching, the disparity value is obtained, and the distance from the target to the camera is calculated by disparity. Simulations show that this method can satisfy the distance measurement.
We present a set of multi-wavelength mosaics and photometric catalogs in the ALMA lensing cluster survey (ALCS) fields. The catalogs were built by reprocessing of archival data from the CHArGE compilation, taken by th...
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